I have this notification setting set On but when I listen to Dolby Atmos sound through my Sony HT-A9 7.1.4 home theater sound system, I never see an Atmos logo on my screen. I've tried this with the Auto and Passthrough settings and don't see the logo with either option. The Dolby Vision indicator is working properly.
Does this mean this Roku audio option setting isn't working or that the TV (75R635) doesn't think it's getting an Atmos signal over the eArc connection I'm using with a high-quality HDMI 2.1 Monster cable? I hear overhead sound that seems to be Atmos, I just never see the on-screen indicator, so I'm wondering why not. Thanks!